1) One Proportion (8.2) Nationally, roughly 14% of adults fail to wear their seatbelt on...

1) One Proportion (8.2)

Nationally, roughly 14% of adults fail to wear their seatbelt on every car trip. Suppose we find that 6 of 31 drivers in Rochester are not wearing their seatbelt.

a) What sample proportion of drivers weren’t wearing their belt?

b) Run the following hypothesis test from your sample. (z*=1.650 1-tail)

H0: p=0.14

HA: p>0.14

c) Explain what your conclusion means in the context of this situation.

Expert Solution

orchestra answered 2 years ago

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